|I have 5 36'long by 6'wide by aprox 7' deep containers along a rail on my deck. Usually we plant state fair zinnias b/c we like the height they give (helps for privacy, we live in chicago). I am interested in trying a new plant or plants this year that I can 1 grow form seed 2 can withstand some wind 3 will last until late summer, early fall. I Like the zinnias but always develope powdery mildew|
|Zinnas always seem to develop powdery mildew towards the end of the season so I know what you're going through. Have you considered planting dwarf Mexican sunflowers? Their sturdy stems will hold up in the wind and if you prune off the spent flowers before they set seeds, the plants will develop lots of flowers all season long.
Amaranthus, border dahlias, cleome, calendula, cosmos and nicotiana are other suggestions.